package com.abstract_;

public class AbstractDetail01 {
    public static void main(String[] args) {
        //??????????????
//        new A();
    }
    //??????????з?????
    abstract class A {
        public void hi() {
            System.out.println("hi");
        }
    }
}

//?????????????????abstract????????
abstract class B {
    public abstract void hi();
}


class C {
    //???????????????
//    public abstract int n1 = 1;
}